Morphometrical and acoustical comparison between diploid and tetraploid green toads
نویسندگان
چکیده
منابع مشابه
Call degradation in diploid and tetraploid green toads
According to the ‘environmental selection’ hypothesis, the physical characteristics of environments influence the evolution of long-range acoustic signals by favouring those properties that decrease sound attenuation and distortion with distance. Different environments could favour different acoustic properties and therefore contribute to the intraand interspecific variation of calls. In the pr...
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A summary of the distribution of green toads containing most of the data published after the discovery of polyploid forms (1976) including a map, an index and a bibliography are presented and discussed. 21 Asian type localities of hitherto described nominal green toad taxa are shown. The tetraploids are distributed in high mountains and extremely continental regions with strong climatic shifts....
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چکیده ندارد.
15 صفحه اولGeneration and Developmental Characteristics of Porcine Tetraploid Embryos and Tetraploid/diploid Chimeric Embryos
The aim of this study was to optimize electrofusion conditions for generating porcine tetraploid (4n) embryos and produce tetraploid/diploid (4n/2n) chimeric embryos. Different electric field intensities were tested and 2 direct current (DC) pulses of 0.9 kV/cm for 30 μs was selected as the optimum condition for electrofusion of 2-cell embryos to produce 4n embryos. The fusion rate of 2-cell em...
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ژورنال
عنوان ژورنال: Biological Journal of the Linnean Society
سال: 1998
ISSN: 0024-4066
DOI: 10.1111/j.1095-8312.1998.tb01517.x